RU96116907A - METHOD FOR CONTROL OF URANIUM ENRICHMENT IN POWDERS UO * 002 - Google Patents
METHOD FOR CONTROL OF URANIUM ENRICHMENT IN POWDERS UO * 002Info
- Publication number
- RU96116907A RU96116907A RU96116907/25A RU96116907A RU96116907A RU 96116907 A RU96116907 A RU 96116907A RU 96116907/25 A RU96116907/25 A RU 96116907/25A RU 96116907 A RU96116907 A RU 96116907A RU 96116907 A RU96116907 A RU 96116907A
- Authority
- RU
- Russia
- Prior art keywords
- enrichment
- spectrum
- radiation
- sample
- xray
- Prior art date
Links
- 229910052770 Uranium Inorganic materials 0.000 title claims 2
- 239000000843 powder Substances 0.000 title claims 2
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 title claims 2
- 238000001228 spectrum Methods 0.000 claims 3
- 230000002040 relaxant effect Effects 0.000 claims 2
- 229910052776 Thorium Inorganic materials 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 claims 1
- 238000000084 gamma-ray spectrum Methods 0.000 claims 1
- 238000011005 laboratory method Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- ZSLUVFAKFWKJRC-UHFFFAOYSA-N thorium Chemical compound [Th] ZSLUVFAKFWKJRC-UHFFFAOYSA-N 0.000 claims 1
Claims (1)
rjI
где j - номер релаксирующего настроечного образца;
i - номер измерения, проведенного на данном образце в период установления радиационного равновесия,
калибровка проводится путем сопоставления величин rj и определенных независимо лабораторными методами значений обогащения в релаксирующих настроечных образцах.A method for controlling enrichment in UO 2 powders, including measuring the gamma-ray spectrum of a sample with a characteristic size that ensures self-absorption of gamma-radiation in the range 0 - 300 KeV using a scintillation detector spectrometer, and subsequent processing of the spectrum by calculation, characterized in that they interpolate spectrum and step-by-step integration so that the maximum of the main analytical peak falls into a given channel containing 186 keV energy; then, the spectrum is digitally filtered with individual peaks of gamma radiation U 235 and thorium isotopes, as well as x-ray radiation of total uranium, measure the areas of the selected peaks, normalize the areas of all these peaks by dividing by the area of the main analytical peak to obtain normalized intensities I Th231 , I Th234 , I XRay , determine the auxiliary the parameter r from the formula r = (1 + pI Th231 + q I Th234 ) / I XRay , and then the sample enrichment is determined by substituting r in the calibration dependence between the enrichment and r values, which, together with the parameters p and q, is determined by tuning ke instrument from solving a system of equations
r j I
where j is the number of the relaxing training sample;
i is the number of measurements taken on this sample during the establishment of radiation equilibrium,
calibration is carried out by comparing the values of r j and the enrichment values independently determined by laboratory methods in relaxing training samples.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU9696116907A RU2100856C1 (en) | 1996-08-20 | 1996-08-20 | Method for controlling powdered uranium enrichment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU9696116907A RU2100856C1 (en) | 1996-08-20 | 1996-08-20 | Method for controlling powdered uranium enrichment |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2100856C1 RU2100856C1 (en) | 1997-12-27 |
RU96116907A true RU96116907A (en) | 1998-01-20 |
Family
ID=20184704
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU9696116907A RU2100856C1 (en) | 1996-08-20 | 1996-08-20 | Method for controlling powdered uranium enrichment |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2100856C1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2256963C2 (en) * | 2003-06-02 | 2005-07-20 | Федеральное государственное унитарное предприятие "Сибирский химический комбинат" Министерства Российской Федерации по атомной энергии | Method of controlling mass fraction of uranium-235 isotope in gas phase of uranium hexafluoride and measuring system for implementation of the method |
RU2457557C1 (en) * | 2010-12-30 | 2012-07-27 | Открытое акционерное общество "Машиностроительный завод" | Method for determining enrichment of fuel pellets containing mixture of uranium isotopes with uranium 235 |
CN107367752B (en) * | 2017-07-28 | 2019-04-05 | 成都理工大学 | Measure the device of ventilation filter frame radiative level |
-
1996
- 1996-08-20 RU RU9696116907A patent/RU2100856C1/en not_active IP Right Cessation
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